Ebola protein explains deadly mystery

A gruesomely detailed account of a 1989 Ebola virus outbreak in a monkey house in Reston, Va., terrified millions of readers of Richard Preston’s The Hot Zone (1994, Random House). Ebola, normally found in Africa, kills people with chilling efficiency most of the time. Yet the strain that surfaced in Reston spared workers who became infected even as it slew monkeys.